In today's Gospel reading from Luke 5, Jesus instructed Peter to lower the fishing nets after Peter and his partners had worked hard all night and caught nothing. Peter obeyed and they caught enough fish to fully fill two boats. So astonished, Peter fell at the knees of Jesus and said, "Depart from me, Lord, for I am a sinful man." Peter was awed by the superiority of Jesus. What he said deeply moves me. If we also have such a realization, then know that God is calling you to him. The proper thing to say now would be "Come to me, Lord, for I am a sinful man who needs you."
By the way, after the big catch, Jesus said to Peter, "Do not be afraid; from now on, you will be catching men." Then Peter and his partners brought the boats to the shore, left everything (I suppose that included the fish too) and followed Jesus. What a beautiful lesson and story!
The most joyful thing you can ever hear is the Lord calling you. It's not just hearing his sweet voice; it's knowing that this is Love letting you know that he loves you!